While resembling in some points of rule the Benedictine Order, the Carthusians are distinct in their constitutions and manner of life. They observe an almost perpetual silence and complete abstinence from meat, with a fast once a week on bread and water. Chanting the Divine Office, mental prayer, and manual labor occupy a large part of the day, and studies are not neglected, the Order being traditionally distinguished for the richness of their libraries, maintaining also a modern printing-press at Tournay, Belgium. The rite peculiar to the Carthusian liturgy recalls the usage of the early Church. The Prior of La Grande Chartreuse is always the superior-general. A general chapter meets annually; the first was held in 1152, and its powers were confirmed by PopeAlexander IV in 1258. There are houses in Spain, Italy, England, Germany, Austria, and Switzerland.